:root {
      --primary-color: #5B5BD6;
      --hover-color: #6F86FF;
      --bg-color: #f8f9fc;
      --text-color: #333;
      --secondary-bg: #ffffff;
    }

    [data-theme="dark"] {
      --primary-color: #9aa4ff;
      --hover-color: #b3bfff;
      --bg-color: #121212;
      --text-color: #f1f1f1;
      --secondary-bg: #1e1e1e;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      scroll-behavior: smooth;
    }

    body {
      font-family: 'Plus Jakarta Sans', sans-serif;
      background: var(--bg-color);
      color: var(--text-color);
    }

    header {
      background: var(--secondary-bg);
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
      position: sticky;
      top: 0;
      z-index: 1000;
      padding: 15px 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .logo img {
      height: 60px;
    }

    nav {
      display: flex;
      gap: 20px;
    }

    nav a {
      text-decoration: none;
      color: var(--primary-color);
      font-weight: 600;
      padding: 8px 16px;
      border-radius: 20px;
      transition: 0.3s;
    }

    nav a:hover {
      background: var(--primary-color);
      color: #fff;
    }

    .hamburger {
      display: none;
      flex-direction: column;
      cursor: pointer;
      gap: 5px;
    }

    .hamburger div {
      width: 25px;
      height: 3px;
      background: var(--primary-color);
      border-radius: 5px;
    }

    .mobile-menu {
      display: none;
      flex-direction: column;
      background: rgba(255, 255, 255, 0.9);
      backdrop-filter: blur(10px);
      position: absolute;
      top: 70px;
      right: 20px;
      padding: 20px 15px;
      box-shadow: 0 8px 20px rgba(0,0,0,0.2);
      border-radius: 20px;
      min-width: 180px;
      z-index: 999;
      animation: slideDown 0.3s ease;
    }

    @keyframes slideDown {
      0% {
        opacity: 0;
        transform: translateY(-20px);
      }
      100% {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .mobile-menu a {
      padding: 10px 15px;
      margin: 5px 0;
      color: var(--primary-color);
      font-weight: 600;
      border-radius: 10px;
      text-align: center;
      transition: 0.3s;
    }

    .mobile-menu a:hover {
      background: var(--hover-color);
      color: white;
    }

    .hero {
      text-align: center;
      padding: 80px 20px;
      background: var(--secondary-bg);
      border-radius: 10px;
      margin: 20px 0;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    }

    .hero h1 {
      font-size: 2.5rem;
      margin-bottom: 20px;
      color: var(--primary-color);
    }

    .hero p {
      font-size: 1.2rem;
      max-width: 600px;
      margin: auto;
    }

    .btn-primary {
      margin-top: 20px;
      padding: 12px 24px;
      background: var(--primary-color);
      color: #fff;
      border: none;
      border-radius: 30px;
      font-weight: bold;
      text-decoration: none;
      transition: 0.3s;
      display: inline-block;
    }

    .btn-primary:hover {
      background: var(--hover-color);
    }

    .products {
      padding: 60px 20px;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 20px;
    }

    .product-card {
      background: var(--secondary-bg);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0,0,0,0.05);
      text-align: center;
      transition: 0.3s;
    }

    .product-card:hover {
      transform: translateY(-5px);
    }

    .product-card img {
      width: 75%;
      height: 75%;
      object-fit: cover;
    }

    .contact {
      text-align: center;
      padding: 60px 20px;
      background: var(--secondary-bg);
      border-radius: 10px;
      margin: 20px;
    }

    .social-icons {
      margin-top: 20px;
      display: flex;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
    }

    .social-icons a {
      color: var(--primary-color);
      font-size: 2rem;
      transition: 0.3s;
    }

    .social-icons a:hover {
      color: var(--hover-color);
    }

    footer {
      text-align: center;
      padding: 20px;
      font-size: 0.9rem;
      color: var(--text-color);
      margin-top: 40px;
    }

    .toggle-darkmode {
      cursor: pointer;
      font-size: 1.2rem;
      background: none;
      border: none;
      color: var(--primary-color);
    }

    @media (max-width: 768px) {
      .hamburger {
        display: flex;
      }
      nav {
        display: none;
      }
      .mobile-menu.active {
        display: flex;
      }
    }

    /* Tombol WhatsApp di sudut kanan bawah */
    .whatsapp-btn {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--primary-color);
      color: white;
      padding: 15px;
      border-radius: 50%;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
      font-size: 24px;
      display: flex;
      justify-content: center;
      align-items: center;
      cursor: pointer;
      transition: 0.3s;
    }

    .whatsapp-btn:hover {
      background-color: var(--hover-color);
    }